Correct the position of the syslog handler

Correct the position of the syslog handler,
then the syslog handler can have same settings with
other handlers.

Change-Id: I15163f1dd12713c71d42efdb128f8d12ec5dc307
Closes-Bug: #1399088

oslo_log/log.py

@@ -230,6 +230,20 @@ def _setup_logging_from_conf(conf, project, version):
             logging.ERROR)
         log_root.addHandler(handler)
 
+    if conf.use_syslog:
+        try:
+            facility = _find_facility_from_conf(conf)
+            # TODO(bogdando) use the format provided by RFCSysLogHandler
+            #   after existing syslog format deprecation in J
+            if conf.use_syslog_rfc_format:
+                syslog = handlers.RFCSysLogHandler(facility=facility)
+            else:
+                syslog = logging.handlers.SysLogHandler(facility=facility)
+            log_root.addHandler(syslog)
+        except socket.error:
+            log_root.error('Unable to add syslog handler. Verify that syslog '
+                           'is running.')
+
     datefmt = conf.log_date_format
     for handler in log_root.handlers:
         # NOTE(alaski): CONF.log_format overrides everything currently.  This
@@ -263,21 +277,6 @@ def _setup_logging_from_conf(conf, project, version):
         else:
             logger.setLevel(level_name)
 
-    if conf.use_syslog:
-        try:
-            facility = _find_facility_from_conf(conf)
-            # TODO(bogdando) use the format provided by RFCSysLogHandler
-            #   after existing syslog format deprecation in J
-            if conf.use_syslog_rfc_format:
-                syslog = handlers.RFCSysLogHandler(facility=facility)
-            else:
-                syslog = logging.handlers.SysLogHandler(facility=facility)
-            log_root.addHandler(syslog)
-        except socket.error:
-            log_root.error('Unable to add syslog handler. Verify that syslog '
-                           'is running.')
-
-
 _loggers = {}